Reference HD 6970 has dual-BIOS

"We managed to score a few more details regarding the mystery switch located next to the Crossfire connectors on the HD 6970 card. According to what we know so far, the HD 6970 will have a dual BIOS and the switch is used exactly for that. The switch has two settings and according to AMD's own slides, the setting 2 makes it "protected as factory default", while the setting 1 is unprotected for user updates." | more